Ergonomic knife



FIG. 1 is a right side view of an ergonomic knife showing my design, the knife illustrated in FIG. 1 includes a handle portion shown in broken lines and forms no part thereof;

FIG. 2 is the left side view thereof without the handle portion;

FIG. 3 is top view thereof;

FIG. 4 is a bottom view thereof;

FIG. 5 is a front view thereof; and,

FIG. 6 is a rear view thereof. 

CLAIM The ornamental design of an ergonomic knife, as shown and described. 